Leveraging your hardwired biology in this way is the most powerful way to improve your sleep. Just one more reason why your ...

Spiritual meaning of sleeping with eyes open will help you to understand this mystery. Sleeping with eyes open is not just a ...

A study participant with the device used to record pupil movements during sleep. © Neural Control of Movement Lab / ETH Zurich Though sleep is a time to power down ...

But did you know some amazing creatures can actually sleep with their eyes open? It might seem strange, but these animals have developed abilities to rest while staying alert to their surroundings.

ETH Zurich researchers found that pupil size changes during sleep, indicating shifts in brain activity. This could help ...

Scientists have discovered that our pupils continue to change size while we sleep, revealing unexpected fluctuations in brain ...

For the first time, researchers have been able to observe how the pupils react during sleep over a period of several hours. A look under the eyelids showed them that more happens in the brain during ...

"Sleep deprivation can be associated with insulin resistance or affecting blood sugar and affecting your cardiovascular ...

By 11pm, do you find yourself barely able to keep your eyes open or are you able to squeeze in one more episode of Happy Valley before you put your head down? While five hours sleep is the very ...